食品工程
食品工程
식품공정
FOOD ENGINEERING
2014年
4期
42-45
,共4页
玉米芯%木聚糖%碱法%提取
玉米芯%木聚糖%堿法%提取
옥미심%목취당%감법%제취
corn cob%xylan%alkaline solution%extraction
木聚糖是存在于植物细胞壁中的重要聚合糖，玉米芯是木聚糖含量较高的农业纤维废弃物。采用不同的碱性物质对玉米芯中木聚糖进行提取，结果发现NaOH更适合木聚糖的提取。NaOH碱液提取木糖醇的最适提取条件为：NaOH浓度2.5 mol/L，料液比1 g∶10 mL，115℃提取60 min。在此条件下，木聚糖的提取率达到23.5%，该方法具有较高的应用价值。
木聚糖是存在于植物細胞壁中的重要聚閤糖，玉米芯是木聚糖含量較高的農業纖維廢棄物。採用不同的堿性物質對玉米芯中木聚糖進行提取，結果髮現NaOH更適閤木聚糖的提取。NaOH堿液提取木糖醇的最適提取條件為：NaOH濃度2.5 mol/L，料液比1 g∶10 mL，115℃提取60 min。在此條件下，木聚糖的提取率達到23.5%，該方法具有較高的應用價值。
목취당시존재우식물세포벽중적중요취합당，옥미심시목취당함량교고적농업섬유폐기물。채용불동적감성물질대옥미심중목취당진행제취，결과발현NaOH경괄합목취당적제취。NaOH감액제취목당순적최괄제취조건위：NaOH농도2.5 mol/L，료액비1 g∶10 mL，115℃제취60 min。재차조건하，목취당적제취솔체도23.5%，해방법구유교고적응용개치。
Xylan is an important polymeric sugar in plant cell wall;corn cob is an agricultural fiber waste containing higher xylan content. Three alkaline solutions were used to extract xylan from corn cob, it was found that NaOH solution was more suitable for the extraction of xylan. The optimal extraction factors were showed that NaOH solution was 2.5 mol/L, solid-liquid ratio was 1 g∶10 mL,extraction temperature was 115℃and extraction time was 60 min. Under the above conditions, the yield of xylan was up to 23.5%.
